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Chapter: Web Technology : JavaScript (JS)

Conditional Statements

Very often when you write code, you want to perform different actions for different decisions. You can use conditional statements in your code to do this.

Conditional Statements

 

Very often when you write code, you want to perform different actions for different decisions. You can use conditional statements in your code to do this.

In JavaScript we have the following conditional statements:

 

if statement - use this statement if you want to execute some code only if a specified condition is true

 

if...else statement - use this statement if you want to execute some code if the condition is true and another code if the condition is false

 

if...else if....else statement - use this statement if you want to select one of many blocks of code to be executed

 

switch statement - use this statement if you want to select one of many blocks of code to be executed

 

If Statement

 

You should use the if statement if you want to execute some code only if a specified condition is true.

 

Syntax

if (condition)

{

 

code to be executed if condition is true

 

}

 

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Web Technology : JavaScript (JS) : Conditional Statements |


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